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a triangle has sides that measure (3x+7) cm, (2x+1) cm and (2x-5)cm the perimeter is 66cm find the value of x

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Answer:

To find the value of x, we can start by setting up an equation using the perimeter of the triangle.

The perimeter of a triangle is the sum of the lengths of its three sides. In this case, the perimeter is given as 66 cm. So we can write the equation:

(3x + 7) + (2x + 1) + (2x - 5) = 66

Now let's solve this equation to find the value of x:

Combine like terms:

3x + 7 + 2x + 1 + 2x - 5 = 66

7x + 3 = 66

Subtract 3 from both sides:

7x = 66 - 3

7x = 63

Divide both sides by 7:

x = 63 / 7

x = 9

Therefore, the value of x is 9.

Explanation:

User Johnthuss
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